html,
body {
    width: 100%;
    margin: 0;
    padding: 0;
    font-family: Microsoft YaHei,
        Tahoma,
        Helvetica,
        Arial,
        sans-serif;

}
*{
    box-sizing: border-box;
}
html {
    overflow-x: hidden;
    overflow-y: auto;
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
li{
    list-style-type: none;
}
p {
    padding: 0;
    margin: 0;
}

a {
    text-decoration: none;
}